<template>
  <!-- 主体部分 -->
  <section class="main">
    <input v-model="isAll" id="toggle-all" class="toggle-all" type="checkbox" />
    <label for="toggle-all">Mark all as complete</label>
    <ul class="todo-list">
      <!-- 当任务已完成，可以给 li 加上 completed 类，会让元素加上删除线 -->
      <li :class="{completed:item.isDone}" v-for="item in list" :key="item.id">
        <div class="view">
          <input
            @change="$emit('changeDone',item.id)"
            class="toggle"
            type="checkbox"
            :checked="item.isDone"
          />
          <label>{{item.name}}</label>
          <button @click="$emit('removeItem',item.id)" class="destroy"></button>
        </div>
      </li>
    </ul>
  </section>
</template>

<script>
export default {
  data() {
    return {};
  },
  props: {
    list: {
      //类型设置为数组
      type: Array,
      //必选项，必须导入
      requied: true
    }
  },
  mounted() {
    console.log(this.list);
  },
  computed: {
    isAll: {
      set(val) {
        // console.log(val);
        this.list.forEach(item => {
          item.isDone = val;
        });
      },
      get() {
        return this.list.every(item => item.isDone);
      }
    }
  }
};
</script>

<style>
</style>